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Oracle Business Intelligence Foundation Suite 11g Essentials Sample Questions (Q37-Q42):

NEW QUESTION # 37
DSNs are set up for access to which data sources?

A. ODBC Data Sources
B. Teradata Data Sources
C. IBM Data Sources
D. Oracle Data Sources

Answer: A

Explanation:
Explanation
The principal connection to an OBI Server inside the Oracle BI System is made through an Odbc Connection.
OBI Server can handle multiple repository but you can connect to only one at the same time by DSN Odbc Connection. Therefore, you must set up an ODBC connection for each repository.

NEW QUESTION # 38
A customer needs to do a cross database join between two tables where, one of the tables has a small number of values and the other has a large number of values. How can you optimize the way the BI Server processes the query?

A. By specifying a driving table
B. By creating your joins by using the Business Model Diagram
C. By specifying a one-to-many join between the tables with the small and large numbers of values
D. By specifying a many to one join between the tables with the small and large numbers of values
E. By creating your logical join by using the Joins Manager

Answer: A

Explanation:
Explanation/Reference:
You can specify a Driving table parameter in a complex join.
Driving tables are for use in optimizing the manner in which the Oracle BI Server processes cross- database joins when one table is very small and the other table is very large.
The BI Server will query the driving table (the small one) and will get a list of values. The BI Server will then generate a second SQL using a parameterized IN list with the values from the first query.
Specifying driving tables leads to query optimization only when the number of rows being selected from the driving table is much smaller than the number of rows in the table to which it is being joined.

NEW QUESTION # 39
What must be done before you can run the Oracle Business Intelligence 11g Installer?

A. Create required Oracle Business Intelligence schemas in a database
B. Install the WLS Admin Server
C. Obtain BI installation media
D. Ensure system meets installation requirements for Fusing Middleware, Oracle Business Intelligence, AND Repository Creation Utility
E. Select installation components - OBIEE, BIP, RTD

Answer: A,C,D

Explanation:
Before you can run Oracle Business Intelligence 11g Installer, you must first create required Oracle Business Intelligence schemas in an unhardened database. You use a tool called the Repository Creation Utility (RCU) to create these schemas with the appropriate permissions and data.
Reference: Installation Guide for Oracle Business Intelligence, Additional Oracle Business Intelligence 11g Installer Requirements

NEW QUESTION # 40
When creating Aggregate tables in the OBI repository by using the Aggregate Persistence Wizard, which two statements are true?

A. The analyst must first write DML (Data Manipulation Language) scripts to create the aggregate table.
B. The Extraction Transformation and Loading process creates the aggregate tables.
C. Job Manager can be used to run the Aggregate Persistence script.
D. The Aggregate Persistence Wizard enables you to automate the creation of physical aggregate tables and their corresponding objects in the repository.

Answer: C,D

Explanation:
Explanation/Reference:
B: The Aggregate Persistence Wizard automates the creation and initial population of aggregates, persists them in a back-end database and configures the BI Server metadata layer so that they're used when appropriate.
C: The wizard then shows me a preview of the script it's going to generate, and asks me if I want to create any more summaries. Here's how the preview script looks - note that it's not SQL, it's a script language that the BI Server understands and uses as the specification for an aggregation job, which it then turns into separate CREATE TABLE, INSERT ... SELECT and so on SQL statements, "optimized" for the particular back-end database platform.
Script example:
"ag_Items"
for "Seminar - Complete"."Items"("Quantity")
at levels ("Seminar - Complete"."Customerdim"."State", "Seminar - Complete"."Productdim"."Category",
"Seminar - Complete"."Timedim"."Year")
using connection pool "custdw"."CUSTDW_Pool"
in "custdw".."CUSTDW";
Incorrect answers:
A: Not required.

NEW QUESTION # 41
When designing a Star Schema, which option does not apply?

A. The fact has several foreign keys that are primary keys in the dimensional table
B. Dimensional tables have one attribute primary key as Product_ID for products.
C. Fact table is joined to the related dimensional tables.
D. The facts are quantifiable.
E. Dimensional tables are normalized.

Answer: E

Explanation:
In a Star Schema the dimensional tables does not need to be normalized.
A Snowflake Schema is a modified Star Schema that has normalized the dimensional tables.

NEW QUESTION # 42
......

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